Brush.



UNITED STATES PATENT OFFICE.

ARTHUR.' WOLCOTT,.OF WINTHROP; MASSAGHUSETTS, ASSIGNOR, .BY MESNEASSIGNMENTS, TO JOHN L. WRITING-J. J. ADAMSCOQ, OF.BOSTON,.MASSACILUSETTS,.A CORPORATION OF MAINE..

sansa."

Specification of. Letters 'atientv pansements my .fr/,neceslserienummer.

Corr, of Winthrop, in the county of Suifolk The. inventionhas forlitsobject to provide simple and effective means for binding or clampingthe. butt ends of, the bristles securely together independently of thehandle, and securing the bunch to the handle.

The invention is embodied in abrush in which the end of a bunchkofbristles 0r brush filaments formed by the butts ofthe bristles, isinserted in a metal Vcup having a bottoni and a `flange integralthcrcwith,. ofthe.

`the flange surrounding the butt Jend bunch and holding the saine in acompressed condition which may be caused wholly by the contraction ofthe cup to force the flange inwardly upon .the base both the contractionof the. cup and. the pansion of the said base. ln` either case thebottom of the cup constitutes a holding ineinber which connects all`partsof the base por.- tion of the flange, and confines the latteragainst deviatiomfrom the forni imparted by the compression of the cuprequired to rop` erly confine the bristles, so that theft ange can notrelax its grip on the'bristles, and cannot be distorted or crimped byinward pressure exerted on its outer surface for the purpose ofcontracting` it. A suitable handle is provided on which the bottom ofthe cup is scaled, means being provided for securing the cup to thehandle.

Ot' the accompanying drawings forming a part of this specification,Figure l represents a longitudinal section of a brush embodying myinvention. Fig. 2 represents a.. section on line 22 of Fig. l. -Figs. 3and represent perspective views of different forms of the metal cup.Fig. 5 represents a. sectional view of the cup before its compression,showing the butt portion of a bunch of bristles inserted therein. Fig.v(3

represents a view similar to Fig. 5, showing the cup contracted to bindthe bristles. Fig.

ofthe bunch, or byv 7 represents Va View similar-to Fig. 2,'.sl1ow-Patented 39.14.112.. IQGQ.

ing Pthefcup.contracted :and the base of the bristle buncl lar to Fig. 7spreader.

rllh'e same'letters of lreference indicate the same :parts in` alll thefigures.

In 'carrying out my invention, I provide a cup,i composed of a bottom12,' and 'an-endless ange or Wall "13 surrounding the bottom, the Wholebeing formed from metal, by the action ofsuitable dies, the metal beingVof substantial 'thickness so thatwhen the cup is contracted,i ashereinafter described, the

but showinga dilerent form of flange will be practieallyrigid. T liefornil.

ingdies leave the flange standingat right angles with the bottom, asshowirin Figs. 3 and 5. In the cavity ofthe cup-linsert the butt 'ends`of 'a bunch' 14 of bristles or brush'ilaments. The flange l'surroundsthe'biistl'e butts, and the bottoni constitutes a confining member whichrigidly connects all parts of the base of the flange, so that it cannotbe distorted or caused to deviate from the predetermined. form required'to enable it to properly engage and confine-the base offth'e,buncli"of.bristl.es, and' hold the same under compression, as.hereinafter described. Wlien the confining engagement between thebaseoftli'e, bunch ofbristles and the flange is tobe elected 'wholly bythe lateralfcontracton offth'e cup, as shown in Figs. 1,' 2 and glfapplyinward pressure, by anysuitable mechanical appliances, .to practicallyallparts o t"the external surface of the flange, tom of the cup, in suchmanner as to force all parts of the flange inn .-:dly and reduce theareav of the bottom. The flange is thus caused to exert compressivepressure on the portions of the bristles surrounded by it the bristlebutts beingthus firmly clamped and secured' to the cup. The reductionoi? the area of the bottom l2, shown by compar ing Fig.` 5 with Figs. 6,7 and 8, prevents outward displacement of the contracted flange bytheeilort of the compressed bristle bunch to expand. The bottom. alsoprevents any distortion, buckling or erin'iping of the flange by thepressure 'exerted in contracting it, the bottom acting in this as astrutor brace which rigidly supprv ts the base portion of the flange,and enables it. to be uniformly and evenly contracted at all points,Without being distorted, crimped or respect i'spread: Fip. 8'is a viewsiiniand to the margin .of the-botg l t aoaaoi buckled, and withoutdeviatii'ix:r from tlied'eVH l sired predeterii'iined forni. @Wing tothe presence of the bottoni, a greater 'inward contraction of the iangeis permitted Without distortion, crimping or buckling, than wouldotherwise be possible, the contraction of the bottom preserving thelcontracted shape imparted to the flange. lt the liange were an openerrule or band having no bottom, heavy pressure applied to its outersurface to contract the Atlange, would result in the distortion orcrimping of the flange,

Aso that it would not acquire the desired predetermined form..

" When the confining engagement between .the base el' the bunch and theflange is to be 'effected both by contracting the cup and spreading thebase of the bristle bunch, as shown by comparing Figs. 7 and 8 withAl'd`ig. 5, the cup may be contracted after the insertion of a spreaderintothe lbase of the 'seat 'on the handle by the against4 and nails 21driven through spreader 2G `holes in the spreader and in the cup bottominto the hand e.

In each of the described embodiments of 'the invention, the cupconstitutes a connecting medium between the bristles and handle, 'the'bristles being held securely' to- 55 the gather in an operative bunchindependently ozt' the handle, so that the o )eration ol attaching thecup to the hand e establishesa connection handle.

.I claim:

l. A brush comprisingv ametal cup having I a bottom and a flan eintegral therewith, and a bunch of brist es orbrush filaments,

the baseof which is surrounded by the-'65 flange, the cup including itsbottom beingl compressed on the b ase of the bristles to hold Vthem in acompressedcondition, the

between the bristles and the 1 said bottom constituan a holding memberwhich rigidly contines t e flange against deviation fromitspredetermined form.

2. A brush comprising a bunch of bristles or brush filaments, a metalcup in which the? base of thebunch is inserted1 said cup hav-` "thebristle bunch, the bristles being thus 1 vdoubly compressed. In thiscase the bottoni actsboth to prevent the spreading or out- 254 Wardyieldingof the tlang'efto the pressure o f the bristles against it, andalso to pre y vent distortion or crimping of the flange by the pressurewhich contracts it.

ing a bottom and a flange integral therewith, Y

y, he'eup may be oblong in form, as shown in Fig. 3, or it may have acircular form, which is intended to be represented by Fig. at, or itVmay have au elliptical or any other .suitableY form.

After the cup has been engaged as dei scribed with'thebristles, it maybe secured in any suitable Way to a handle l5, one end of which ispreferably formed as a seat 16 ttor the bottom 12. In Figs. l. and?l Ishow, the means for holding the cup bottoni against said seat, a sheetmetal sleeve l?,

which is 'toi-med to surround the sides et the cup.. @ne of the endportionsoi the sleeve vis suitably securedto the handle, and the otherend portion is contracted to form a shoulder i!) engaging the outer edgeof the flange,

2in 7 and t3, I sioW the cupv heid the cupA including its bottom being;oompressedon the base ,of the bunch to hold said. base in .a compressedcondition, the bottom constitutinga holding; member which conincs thefiange against deviation from its predetermined form, a handle on whichthe bottoni is seated. and means for securing the cup to the handle.

3. A brush comprising a metal cup having a bottom and a Hansje integraltherewith,

and abunch of bristles or brush filaments

